Re: Memory Leak
The memory won't actually be reclaimed until the GC kicks in, which in most cases isn't until the heap is a certain percentage utilized. Mike --- Dan DiCesare [EMAIL PROTECTED] wrote: HR htmlDIV PFONT face="Geneva, Arial, Sans-serif"Hello,/FONT/P PFONT face=ArialI am using JSP lt;useBeangt; tags to invoke java beans. In my java beans I create a reference to my EJB's. In my JSPnbsp;I scope the bean as session. In other words the syntax looks as follows:/FONT/P Plt;jsp:useBean id="fooBean"nbsp; scope="session"nbsp;nbsp;nbsp; class="FooBean" /gt;/P PFONT face="Geneva, Arial, Sans-serif"What we are noticing is that every time the page is called, a certain amount of memory is used by each session as expected by the session scope. However, when the session is complete, the memory is not released by the JVM. The end result is that we need to stop Orion server and restart to clear the JVM memory usage. Can anyone advise as to what we need to do. /FONT/P PFONT face=Arial/FONTnbsp;/P PFONT face=ArialThanks/FONT/P PFONT face=Arial-Dan/FONT/P/DIVbr clear=allhrGet your FREE download of MSN Explorer at a href="http://explorer.msn.com"http://explorer.msn.com/abr/p/html __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/
Re: serialisation problem?
Prior to JDK 1.3, the serialization of a string exceeding 64k would result in a java.io.UTFDataFormatException being thrown. If you're using a 1.2 version (or earlier) JVM, then you should see this exception being raised somewhere rather than getting an empty string. Mike -- Mike Clark Clarkware Consulting Enterprise Java Architecture, Design, Development http://www.clarkware.com Greg Matthews wrote: dear all, we're got a strange problem whereby a large (141K) String return value from a stateless session bean is turning up at the client as an empty string. this happens whether we call the ejb method from a jsp or a java client external to orion. it has also happened in other ejb methods during testing where a master-detail type record suddenly stopped being retrievable when the total size of all data in xml format as a String exceeded a certain size. is there an upper limit on the size of variables that can be serialised? does anyone have any ideas on why this might be happening? thanks, greg
Re: How to use jikes compiler?
Download information for jikes is available at...
http://alphaworks.ibm.com/tech/Jikes
Make sure the jikes executable is in your PATH, or fully qualify it's
location in the "executable" tag of the server.xml file.
Mike
LouisVoo wrote:
Hi,
I want to configure my orion to use jikes compiler to do some experiment,
can anyone tell me how to do it?
I modified the server.xml file, and did:
compiler executable="jikes" classpath="../lib/rt.jar" /
rt.jar is already in orion/lib directory, do I need to get jikes executable
file? where can I get it? And after that what to do?
Thanks
Regards,
Louis
ø¤°`°¤ø,¸¸¸,ø¤°`°¤ø,¸¸»«¸,ø¤°`°¤ø,¸¸,ø¤°`°¤ø
- Original Message -
From: "Santosh Kumar" [EMAIL PROTECTED]
To: "Orion-Interest" [EMAIL PROTECTED]
Sent: Friday, December 01, 2000 3:44 AM
Subject: Re: class cast exception
Try:
PhoneEntryHome home = (PhoneEntryHome)
PortableRemoteObject.narrow(boundObject,PhoneEntryHome.class);
It should work fine.
Regards,
Santosh.
- Original Message -
From: Marcus Lankenau [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Friday, December 01, 2000 3:51 PM
Subject: class cast exception
Hi!
I've started developing a very simple phonebook application for
learining purpose. The app consists of an ejb and a servlet adding and
showing the phone entries. The servlet is running quite well at home,
but in office I get
this exception:
Exception caught: java.lang.ClassCastException:
PhoneEntryHome_EntityHomeWrapper14
while casting the homeinterface:
Object boundObject = context.lookup("java:comp/env/ejb/PhoneEntry");
PhoneEntryHome home = (PhoneEntryHome) boundObject;
Any idears what is going wrong?
thx in regards
Marcus Lankenau
--
Mike Clark
Clarkware Consulting
Enterprise Java Architecture, Design, Development
http://www.clarkware.com
RE: EJB Performance Question.
If you're referring to the enable-call-by-reference tag, then indeed it does do something (at lease in version 5.1). Setting this tag to true will effectively pass EJB method arguments and returned objects by reference when called within the same JVM, rather than by value in accordance with the EJB 1.1 specification. This obviously increases performance by eliminating the marshalling overhead, at the cost of being non-spec compliant. At any rate, for better or worse, in WebLogic call by reference is enabled by default. In other words, calls between servlets and EJBs in the same JVM are optimized. That said, don't let these optimizations pollute your EJB design. Having a well-defined and minimal remote contract is much more portable, and generally easier to maintain and manage. Moreover, you may at some point in the future decide to separate the web server and EJB container into separate JVMs. In general, EJB interface contracts are specifically important to design correctly, as the invocation of remote methods may in turn provoke life cycle methods, transactions, etc. Mike --- Tim Drury [EMAIL PROTECTED] wrote: At 10:03 14.11.00 , you wrote: Every single one of those calls to dir.getXXX() has to go across the network via RMI. This is slow. You are better off using a well, with orion this is intra-vm so its not that bad ... Is there proof that Orion does this? I'm not trying to be a jerk, but I'd like to see some numbers on how long a set/get takes for a client-to-ejb call and an ejb-to-ejb (same vm) call. Not even Weblogic optimizes to pass-by-value for intra-vm ejb calls. You have to use TopLink to get that optimization. Funny though, Weblogic provides a tag in their deployment description but it doesn't do anything. -tim __ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/
Re: DeadlockException
Ah, nothing quite like two threads in a deadly embrace! At least the server detects the deadlock and prints some useful debug for deadlock situations. Try generating a VM dump using Windows: Ctrl Scroll Lock *nix : kill -QUIT server process id In general, you're looking for a thread in the MW state that has already locked a monitor on which some other MW thread is trying to synchronize. In your case, thread 5 and thread 6 are deadlocked, both waiting to synchronize on a monitor held by the other. The stack trace information may help you determine where the deadlock is occurring. Mike --- Thomas Hertz [EMAIL PROTECTED] wrote: Hello, AC Does anyone know what the following error means? AC 11/14/00 10:51 PM Error in bean com.netregistry.aucom.accounting.BillingAccount: AC Error in ejbPassivate AC com.evermind.server.DeadlockException: Deadlock detected: thread 11 is waiting for AC resource entity 1003 held by thread 11 AC Any ideas on how to track it down? Just ten minutes before I read this message I encountered the same error in my application. (1.4.4) com.evermind.server.rmi.OrionRemoteException: Transaction was rolled back: com.evermind.server.DeadlockException: thread 6 is waiting for resource entity K-5 held by thread 5 in transaction [Transaction 4d:1:0:0:0:0:0:0:0:e2:0:e2:d4:67:89:da] who is waiting for resource entity E-6 held by thread 6 in transaction [ Transaction 4a:1:0:0:0:0:0:0:0:e2:0:e2:d4:67:89:93]; nested exception is: I am not quite sure what that means exactly. Can anybody help us? Thanks in advance, /Thomas -- | /Thomas Hertz | [y] hybris GmbH | Software Engineering | | [EMAIL PROTECTED] | Schwere-Reiter-Strasse 35 | tel +49 89 306697- 0 | | www.hybris.de | Haus 16, D-80797 Muenchen | fax +49 89 306697-99 | | pgp fingerprint: D070 5D86 BE2D C3AF E2CC D2D8 C29A 7F68 7407 629E | __ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/
Re: DeadlockException
For generating JVM dump on Windows, ctrl break and ctrl scroll lock work equally well. Mike Scott Stirling wrote: Does Orion do more than check a timeout value for deadlock detection? Some servers just assume a deadlock if a method call takes too long. That's the simplest type of deadlock detection. Anyway, I use CtrlPause/Break to get a stack dump on Windows (i.e, I don't think CtrlScrLk will work, will it?). The Ctrl\ combo also works on both Windows and UNIX. A real stack dump from the JVM will tell you more about what K-5 and E-6 are, and show you a call stack for the two threads that are deadlocked. So did the Orion server print out that deadlock info, or was that somehow percolated from the JVM? That's interesting. You're extremely lucky if the JVM detects a deadlock for you, which it sometimes does. Having spent many hours wading through stack dumps from problem apps and buggy JVMs, I think if you have the exact deadlock info like you do below (thread A is locking resource x and thread B is locking resource y, etc.) you're pretty darn fortunate. Lots of times that deadlocks occur, JVMs don't detect it. Disable JIT when before you try to catch this in a stack dump, or else you won't be able to see the line numbers in the stack traces. Scott Stirling -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mike Clark Sent: Tuesday, November 14, 2000 2:23 PM To: Orion-Interest Subject: Re: DeadlockException Ah, nothing quite like two threads in a deadly embrace! At least the server detects the deadlock and prints some useful debug for deadlock situations. Try generating a VM dump using Windows: Ctrl Scroll Lock *nix : kill -QUIT server process id In general, you're looking for a thread in the MW state that has already locked a monitor on which some other MW thread is trying to synchronize. In your case, thread 5 and thread 6 are deadlocked, both waiting to synchronize on a monitor held by the other. The stack trace information may help you determine where the deadlock is occurring. Mike --- Thomas Hertz [EMAIL PROTECTED] wrote: Hello, AC Does anyone know what the following error means? AC 11/14/00 10:51 PM Error in bean com.netregistry.aucom.accounting.BillingAccount: AC Error in ejbPassivate AC com.evermind.server.DeadlockException: Deadlock detected: thread 11 is waiting for AC resource entity 1003 held by thread 11 AC Any ideas on how to track it down? Just ten minutes before I read this message I encountered the same error in my application. (1.4.4) com.evermind.server.rmi.OrionRemoteException: Transaction was rolled back: com.evermind.server.DeadlockException: thread 6 is waiting for resource entity K-5 held by thread 5 in transaction [Transaction 4d:1:0:0:0:0:0:0:0:e2:0:e2:d4:67:89:da] who is waiting for resource entity E-6 held by thread 6 in transaction [ Transaction 4a:1:0:0:0:0:0:0:0:e2:0:e2:d4:67:89:93]; nested exception is: I am not quite sure what that means exactly. Can anybody help us? Thanks in advance, /Thomas -- Mike Clark Clarkware Consulting Enterprise Java Architecture, Design, Development http://www.clarkware.com
Re: Get the web uploaded file
Have a look at the com.oreilly.servlet.MultipartRequest utility class which
encapsulates the details of the file upload specification (RFC 1867) parsing
available here
http://www.servlets.com/resources/com.oreilly.servlet/index.html
An example servlet which uses this utility class is here...
http://www.servlets.com/jsp/examples/ch04/index.html#ex04_17
Mike
Storm Linux User wrote:
At 15:00 12.11.00 , you wrote:
It's not form commercial use. It's for my research project for getting my
master's degree in Electrical Engineering ... I'm not concered about securety
right now.
then hack right on. will be fun. the security aspects of this could easily
fill a chapter of your thesis if it fits your topic ;-).
Thanks, Robert.
The problem is that I'm not able to get the file that I uploaded using a HTML
form like:
form method="post" action="my_servlet"
input type="file" name="my_class_file"
input type="submit"
/form
How do I get the file in the servlet and make an object of it?
I've tried:
File f = (File)request.getAttribute("my_class_file");
But it does not work. It compiles if I change to:
Object obj = request.getAttribute("my_class_file");
But then, how do I transform an Object to a File, and then, as the file is a
compiled class, how do I create an instantiate this class to call some
methods of it?
Thanks again!
[]s
Guilherme Ceschiatti
[EMAIL PROTECTED]
--
Mike Clark
Clarkware Consulting
Enterprise Java Architecture, Design, Development
http://www.clarkware.com
Re: xml
The reference to the DTD file in the line...
!DOCTYPE Catolog SYSTEM "Catalog.dtd"
isn't resolvable by the XML parser probably because it doesn't exist in the
directory from which you started Orion. You must either use an absolute file
specification or a valid URL.
Mike
Derek Akers wrote:
I am having a problem parsing an xml file using the following code, trying
to validate the enclosed xml files...
i keep getting the following error:
** Parsing error, line 2, uri null
Relative URI "Catalog.dtd"; can not be resolved without a document URI.
can anyone help? sorry for the length...
public boolean checkXML (String source) // source is a file name string
passed from the web
{
Document doc;
String path = "d:/orion/applications/eldan/eldan-web/xml/" + source;
if (source == null)
System.out.println("\nValidator:checkXML: source string is null");
try
{
DocumentBuilderFactory docBuilderFactory =
DocumentBuilderFactory.newInstance();
docBuilderFactory.setValidating(true);
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Validator v = new Validator();
FileInputStream xmlStream = new FileInputStream(path);
// URL url = v.getClass().getResource(path);
// doc = docBuilder.parse (url.toString());
doc = docBuilder.parse(xmlStream);
valid = true;
System.out.println("\nxml valid");
} // end try
catch (SAXParseException err)
{
System.out.println("exception 1");
System.out.println ("** Parsing error"
+ ", line " + err.getLineNumber ()
+ ", uri " + err.getSystemId ());
System.out.println(" " + err.getMessage ());
// print stack trace as below
} // end catch 1
catch (SAXException e)
{
System.out.println("exception 2");
Exception x = e.getException ();
((x == null) ? e : x).printStackTrace ();
} // end catch 2
catch (Throwable t)
{
System.out.println("exception 3");
t.printStackTrace ();
} // end catch 3
return valid;
} // end checkXML
--
Catalog.xml
--
?xml version='1.0' encoding='UTF-8' ?
!DOCTYPE Catolog SYSTEM "Catalog.dtd"
Catolog
Product ID = "1273"
ProductNameAir Jordan/ProductName
DescriptionThe best basketball shoe in town./Description
Price140.99/Price
/Product
Product ID = "1274"
ProductNameNike Zoom/ProductName
DescriptionAn amazing crosstrainer./Description
Price75.99/Price
/Product
Product ID = "1276"
ProductNameAddidas Predator/ProductName
DescriptionThe best aspect of soccer today./Description
Price219.99/Price
/Product
Product ID = "1279"
ProductNameAddidas Turbo/ProductName
DescriptionThe lightweight shoe for the future./Description
Price99.99/Price
/Product
/Catolog
--
Catalog.dtd
--
!ELEMENT Catalog (Product+ )
!ELEMENT Product (ProductName , Description , Price )
!ATTLIST Product ID CDATA #REQUIRED
!ELEMENT ProductName (#PCDATA )
!ATTLIST ProductName e-dtype NMTOKEN #FIXED 'string'
!ELEMENT Description (#PCDATA )
!ATTLIST Description e-dtype NMTOKEN #FIXED 'string'
!ELEMENT Price (#PCDATA )
!ATTLIST Price e-dtype NMTOKEN #FIXED 'fixed.14.4'
--------
--
Derek Akers
Internet Application Developer
Eldan Software, Toronto
www.eldan.com
--
Mike Clark
Clarkware Consulting
Enterprise Java Architecture, Design, Development
http://www.clarkware.com
Re: I nee help Please Please
The Orion Primer has step-by-step instructions for packaging and deploying a J2EE application... http://www.znerd.demon.nl/orion-primer/ Mike [EMAIL PROTECTED] wrote: I'm getting mad because I don't know how to generate .ear and .jar(ejb). I have generated using deploytool from Sun, but I got an error from Orion with I generate a .jar and try to add it to .ear. Please Could someone tell me how could I generate ejb.jar and .ear (step by step)files very weel generated and without error. I have used Orion gui tool unsuccessfully Thank you very much for your help Michel ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: Strange error with Netscape
For what it's worth, I've seen this happen when the URL location parameter of HttpResponse.sendRedirect() is null. Mike [EMAIL PROTECTED] wrote: In netscape, I am sometimes getting this error when posting to a page. Any ideas? No problems in IE. HTTP/1.1 413 Request Entity Too Large Date: Wed, 06 Sep 2000 13:17:26 GMT Server: Orion/1.3.1 Connection: Close Content-Type: text/html 413 Request Entity Too Large James Birchfield Ironmax a better way to buy, sell and rent construction equipment 5 Corporate Center 9960 Corporate Campus Drive, Suite 2000 Louisville, KY 40223 -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: Counter.jar
I'm not familiar with this application, but based on your diagnosis, it appears
that the JNDI naming context used by your application is different than that
used by the (successful) servlet. I'd start by looking at the initialization of
the JNDI context to verify that the naming properties are the same.
Mike
[EMAIL PROTECTED] wrote:
I'm trying to use the counter.jar provided with the orion release.
Following the instructions for deploying it with my app with one change (I
also had to add "ejb-ref-typeEntity/ejb-ref-type" to web.xml), when I
launch my app, I get a NaeNotFoundException when I call
blah.getNextId("java"java:comp/env/ejb/Counter", "AccountEJB")). When I
make the exact same call from my servlet, it works fine. I'm guessing it's
some kind of permissions thing, but I don't have a clue as to where to look.
Any ideas?
Thanks,
Bill
--
//////
//
// Mike Clark
//
// Clarkware Consulting
// Enterprise Java Architecture, Design, Development
//
// http://www.clarkware.com
// [EMAIL PROTECTED]
// +1.720.851.2014
//
Re: Autoencoding URLs
You must explicitly encode the URL using...
A href=servletResponse.encodeURL("management.jsp?id=%=ka%")
%=user.getKaName(ka)%
/A
Mike
--- "Werff, M.R. van der" [EMAIL PROTECTED] wrote:
Hi,
I'm trying to support browsers that don't have cookies enabled. The
autoencoding of Orion works fine in most cases. It automatically
appends
;jsessionid=EDGKOOGMNHNH to most URLs. It even works on URLs with a
parameter: password.jsp?oper=modify becomes
password.jsp?oper=modify;jsessionid=EDGKOOGMNHNH.
So far so good. It does not work when I'm creating the links from
information from a session bean:
A href="management.jsp?id=%=ka%"%=user.getKaName(ka)%/A
In that case I'm ending up with: management.jsp?id=midip without the
;jsessionid=EDGKOOGMNHNH part, and so the user is required to login
again
when accessing this link.
Any help is appreciated.
Cheers, Martin.
Martin van der Werff
KPN Research, PO Box 15000, 9700 CD Groningen, The Netherlands
Tel (+31 50 58) 21005, Fax (+31 50) 3122415
[EMAIL PROTECTED]
__
Do You Yahoo!?
Yahoo! Mail - Free email you can access from anywhere!
http://mail.yahoo.com/
Re: URLs in web apps
Indeed it is. Mike Kevin Duffey wrote: HI, Is that a HTML 4.0 tag? I never saw that one before. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mike Clark Sent: Friday, September 01, 2000 6:48 AM To: Orion-Interest Subject: Re: URLs in web apps Alternatively, you could use this syntax... html head base href="%= request.getContextPath() %" / /head body a href="file.jsp"click/a /body In general, the servlet engine automatically maps the directory name to the application, but references to URLs from standard HTML tags are not automatically mapped. When the base href tag is used, all relative URLs are resolved relative to this value. If your application is mapped to the directory "myapp", then in the example above the href would reference "/myapp/file.jsp". Mike Kevin Duffey wrote: I think your ok..but I use the request.getContextPath() in a "included" header file on all my JSP pages. I assign it to a contextPath string var and use it in all my href tags a href="%= contextPath %/path/file.jsp"click/a But, I believe the spec allows relative paths to the root of the web app. So, if your root is /, and the dir is i3-web, and you have a linke to /path/page.jsp, it would be from /i3-web/path/page.jsp. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kurt Hoyt Sent: Thursday, August 31, 2000 7:31 PM To: Orion-Interest Subject: URLs in web apps I've noticed an inconsistency in how URLs are used within the servlet engine in Orion. Perhaps I've never had to deal with this since this is the first servlet engine I've used that supports .war files, server.xml, web.xml files, etc. I have a web app that is deployed like this: server.xml contains this line: application name="i3" path="../i3"/ default-web-site.xml contains this line: web-app application="i3" name="i3-web" root="/i3"/ application.xml contains these lines: /module web web-urii3-web/web-uri context-root//context-root /web /module I expect that absolute URLs used anywhere in my JSPs (and that includes a href="..", %@ include file="..." %, and response.sendRedirect() calls) would look like this /i3/rest of URL. However, I've noticed that for anything other than a href="..." tags, the /i3 is implied and all I need is /rest of URL for absolute paths. I have two questions: 1. What does the context-root element do? The servlet and JSP specs are pretty vague about this. 2. Should I be calling request.getContextPath() and using it to create absolute URLs for a href="..." tags or just try and use relative URLs within the a href="..." tags? Kurt in Atlanta -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 // -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: URLs in web apps
Alternatively, you could use this syntax... html head base href="%= request.getContextPath() %" / /head body a href="file.jsp"click/a /body In general, the servlet engine automatically maps the directory name to the application, but references to URLs from standard HTML tags are not automatically mapped. When the base href tag is used, all relative URLs are resolved relative to this value. If your application is mapped to the directory "myapp", then in the example above the href would reference "/myapp/file.jsp". Mike Kevin Duffey wrote: I think your ok..but I use the request.getContextPath() in a "included" header file on all my JSP pages. I assign it to a contextPath string var and use it in all my href tags a href="%= contextPath %/path/file.jsp"click/a But, I believe the spec allows relative paths to the root of the web app. So, if your root is /, and the dir is i3-web, and you have a linke to /path/page.jsp, it would be from /i3-web/path/page.jsp. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kurt Hoyt Sent: Thursday, August 31, 2000 7:31 PM To: Orion-Interest Subject: URLs in web apps I've noticed an inconsistency in how URLs are used within the servlet engine in Orion. Perhaps I've never had to deal with this since this is the first servlet engine I've used that supports .war files, server.xml, web.xml files, etc. I have a web app that is deployed like this: server.xml contains this line: application name="i3" path="../i3"/ default-web-site.xml contains this line: web-app application="i3" name="i3-web" root="/i3"/ application.xml contains these lines: /module web web-urii3-web/web-uri context-root//context-root /web /module I expect that absolute URLs used anywhere in my JSPs (and that includes a href="..", %@ include file="..." %, and response.sendRedirect() calls) would look like this /i3/rest of URL. However, I've noticed that for anything other than a href="..." tags, the /i3 is implied and all I need is /rest of URL for absolute paths. I have two questions: 1. What does the context-root element do? The servlet and JSP specs are pretty vague about this. 2. Should I be calling request.getContextPath() and using it to create absolute URLs for a href="..." tags or just try and use relative URLs within the a href="..." tags? Kurt in Atlanta -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: Inheritance
There has been lively discussion on this topic in the ejb-interest mailing list. You can search the archives for inheritance here... http://archives.java.sun.com/archives/ejb-interest.html EJB inheritance has some general restrictions, though I don't think you'll find Orion to be the culprit. In summary, here are the restrictions as imposed by the EJB spec: - Bean-managed EJBs must return a primary key for an ejbCreate() method. Any class that inherits from the bean-managed EJB class cannot have an ejbCreate() method that returns a different primary key class. The restriction also applies to the bean-managed EJB's ejbFind() method. - Since EJB Home methods return a distinct remote interface, you cannot have a Home interface inherit from another Home interface that returns a different remote interface. In other words, BankAcountHome cannot extend AccountHome and attempt to return a BankAccount remote interface for a finder method whereas the AccountHome will return an Account remote interface. You can, however, use inheritance in EJB beans to refactor common business methods into a common superclass, and/or override base class behavior. Mike --- Kurt Hoyt [EMAIL PROTECTED] wrote: I know the EJB 1.1 and 2.0 specs avoid (finesse?) the issue of bean inheritance, but has anyone tried doing anything that mimics inheritance using Orion? If so, can you share how you accomplished it? I have an object model that uses inheritance. I started with a trial version of PowerTier from Persistence, which does support inheritance, but also costs two arms and a leg just for developer licenses, not to mention the wheelbarrows of cash needed to deploy it. Orion has cleared all but two hurdles for us in our evaluation: servlets (I haven't tried one yet, but JSPs work, so I'm pretty sure we're OK there) and "inheritance". Thanks. Kurt in Atlanta __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/
Using development=true
Is anyone successfully using the development="true" option for web applications where the web application classes and the non-web application classes share the same root directory? For example, if you have all your classes rooted in d:/projects/com/xyz/, you can point the reloading classloader to this directory by adding the following to the global-web-application.xml file... orion-web-app jsp-cache-directory="file:d:/orion/persistence/jsp" servlet-webdir="/servlet" development="true" autoreload-jsp-beans="true" classpath path="file:/d:/projects" / ... /orion-web-app The servlet engine will automatically compile and reload servlets (and referenced beans) contained within this root directory that have been edited. However, if you add the same directory to the application.xml file, as in... library path="file:/d:/projects" / then the standard (non-reloading) classloader will take precedence over the reloading classloader used by the web application, and edited servlet files will no longer be reloaded. I understand that I could break up my directory hierarchy into two separate roots, for example d:/projects/apps/com/xyz/... d:/projects/web-apps/com/xyz/... and use the d:/projects/apps in the application.xml and the d:/projects/web-apps in the global-web-application.xml. I also understand that these apps could be deployed as separate JAR and WAR files, but this isn't very convenient in development mode. It's common to root all classes in a single directory, so I'm interested to hear how others may be tackling this problem. Mike __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/
Re: RMI vs. HTTPTunneling
RMI uses the Java Remote Method Protocol (JRMP) to wire the client and server together, whereas HTTP tunneling proxies JRMP requests through the HTTP protocol. HTTP tunneling allows RMI requests to be served from the far side of a firewall. Mike Roman Kagan wrote: Hi! Maybe someone knows: What the difference in RMI vs. HTTPTunnelling ? Sincerely, Roman Kagan
Re: Deploying without a .war file
Indeed, you can "expand" the WAR file structure using directories and sub-directories, and then point to the root directory of the web application in your server.xml file, as in... application name="mywebapp" path="file:c:/projects/mywebapp/" / which points to a directory structure like c:/projects/mywebapp/WEB-INF/web.xml c:/projects/mywebapp/WEB-INF/classes/... c:/projects/mywebapp/index.html c:/projects/mywebapp/login.jsp This makes it much easier during development than manipulating files in the .war file itself. Mike Kurt Hoyt wrote: I'd like to develop my web app without having to package everything up into a .war file or .ear file first. Is this possible with Orion? My reading of the docs seems to imply that it isn't. Also, can the various applications "talk" to each other? Can one web app, for example, use EJBs from another application? Kurt in Atlanta -- ////// // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: 100% processor load with SSL (URGENT PROBLEM)
Yep, I've seen this same problem using Netscape with an HTTP POST when initiating the SSL session. IE doesn't seem to suffer from the same problem. I'm unaware of any work-around. We're patiently waiting for production SSL support, but currently you can't get a production certificate for Orion. The Orion team claims to be working with Thawte (VeriSign) to ensure that a certificate will be available in the future. Mike Porfiriev Sergey wrote: I've got troubles using SSL with orion (windows NT sp6 platform, JDK 1.3 ), after SSL usage CPU usage goes to 100% even on my dual P3-800 (even no request are serving) ( This not happends immediate, but always after some times ) Orion 1.1.37 Orion 1.2 Is there some workarounds? PS: what about getting certificate for production SSL with Orion? Where can i get it.
Re: Help - SSL Usage in Production - is it really possbile?
Unfortunately, that cert is no longer available from Thawte. We're still out of business with Orion using a production SSL certificate. What gives? Mike Mattias Arbin wrote: I have Orion running with a "real" 40-bit cert from Thawte. I guess it does not matter which web-server you say you have. Probably it is for statistics. (I chose Java Webserver). You will be able to choose from a number of different formats when you download the cert. Here I chose "PKCS #7 Certificate Chain". Make sure that you save it in a file that ends with a new line before importing it to the keystore. Good luck. /Mattias - Original Message - From: "Mike Fontenot" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Friday, August 18, 2000 10:50 PM Subject: Help - SSL Usage in Production - is it really possbile? orion users, I've been using the test certificate from Thawte, as both the orion docs. and the OrionSupport suggested. That has been working fine. However, I am now ready to move to production with our e-commerce system and I have run into some major snags that leads me to think NO one is using Orion in a production SSL environment. After going through the Thawte process for getting a server cert, the 'pick your web server' does not list Orion. After talking with Thawte support they suggested picking 'Apache SSL' as a choice. Ok, that seems fine to me. However, they also said I would need to pick the certificate type: x509v3. Since I've been using the 'SSL Chained CA Cert' for development, I wanted to try this out with a development cert to be sure it would work. I tried this using a X509v3 development cert but it will not work. Again, after getting back in touch with Thawte support regarding X509v3 not working, I said I will need to just use the 'SSL Chained CA Cert'. They then informed me that they no longer sell this type of certificate, and that I must go to Verisign to obtain this type of certificate. Well, my first question to Thawte was 'If you dont sell this type of certificate, why is it available on your developers cert pages?' Answer from Thawte: 'Yeah, I've been meaning to talk to our developers to take that off the website.'. Guess how much hair I've lost so far!? Now I am in the 'process' of getting a certificate from Verisign. Of course they do not have 'Orion Server' listed in their pick list of valid webservers. Since I just started this process today I really dont know if they can/cannot support the type of SSL certificate I will need to work with Orion. I'll be the first to admit I'm not real familiar with the Java 1.3 keytool, and different certificate meanings. But, if anyone has really obtained a valid production level SSL certificate, from any Certificate Authority, and successfully integrated this with Orion, please let me/us know how this was accomplished. The only docs I've see are related to development certs, and as I stated earlier, I've got this working fine. I now need to graduate to real e-commerce transactions. Please dont make me go back to Apache/JRun, I feel Orion is so much better but this is a real show-stopper. I have looked through the orion mail archives and it seems all discussions are related to trying to get the developer certs to work, not production certs. Thanks in advance, Mike Mike Fontenot - Object Systems Architect BrandMatrix, Ltd. Golden, Colorado -- ////// // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: Help - SSL Usage in Production - is it really possbile?
Any idea when we'll be able to get a production cert? Mike --- Karl Avedal [EMAIL PROTECTED] wrote: Hello Mike, We're currently making sure that Thawte will have an Orion option for the purchase to make it easier to get a cert (and we'll work with Verisign too). We are also creating a guide to show how you can get a 128 bit or 40 bit production license. Regards, Karl Avedal Mike Clark wrote: Unfortunately, that cert is no longer available from Thawte. We're still out of business with Orion using a production SSL certificate. What gives? Mike Mattias Arbin wrote: I have Orion running with a "real" 40-bit cert from Thawte. I guess it does not matter which web-server you say you have. Probably it is for statistics. (I chose Java Webserver). You will be able to choose from a number of different formats when you download the cert. Here I chose "PKCS #7 Certificate Chain". Make sure that you save it in a file that ends with a new line before importing it to the keystore. Good luck. /Mattias - Original Message - From: "Mike Fontenot" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Friday, August 18, 2000 10:50 PM Subject: Help - SSL Usage in Production - is it really possbile? orion users, I've been using the test certificate from Thawte, as both the orion docs. and the OrionSupport suggested. That has been working fine. However, I am now ready to move to production with our e-commerce system and I have run into some major snags that leads me to think NO one is using Orion in a production SSL environment. After going through the Thawte process for getting a server cert, the 'pick your web server' does not list Orion. After talking with Thawte support they suggested picking 'Apache SSL' as a choice. Ok, that seems fine to me. However, they also said I would need to pick the certificate type: x509v3. Since I've been using the 'SSL Chained CA Cert' for development, I wanted to try this out with a development cert to be sure it would work. I tried this using a X509v3 development cert but it will not work. Again, after getting back in touch with Thawte support regarding X509v3 not working, I said I will need to just use the 'SSL Chained CA Cert'. They then informed me that they no longer sell this type of certificate, and that I must go to Verisign to obtain this type of certificate. Well, my first question to Thawte was 'If you dont sell this type of certificate, why is it available on your developers cert pages?' Answer from Thawte: 'Yeah, I've been meaning to talk to our developers to take that off the website.'. Guess how much hair I've lost so far!? Now I am in the 'process' of getting a certificate from Verisign. Of course they do not have 'Orion Server' listed in their pick list of valid webservers. Since I just started this process today I really dont know if they can/cannot support the type of SSL certificate I will need to work with Orion. I'll be the first to admit I'm not real familiar with the Java 1.3 keytool, and different certificate meanings. But, if anyone has really obtained a valid production level SSL certificate, from any Certificate Authority, and successfully integrated this with Orion, please let me/us know how this was accomplished. The only docs I've see are related to development certs, and as I stated earlier, I've got this working fine. I now need to graduate to real e-commerce transactions. Please dont make me go back to Apache/JRun, I feel Orion is so much better but this is a real show-stopper. I have looked through the orion mail archives and it seems all discussions are related to trying to get the developer certs to work, not production certs. Thanks in advance, Mike Mike Fontenot - Object Systems Architect BrandMatrix, Ltd. Golden, Colorado -- ////// // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 // __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/
Re: http session timeouts
Checking for the existence of a marker object in the HTTP session is a very
common security pattern.
Mike
Todd McGrath wrote:
The site I'm working has a custom login component where users must have
a valid username/ password combination. I would like to redirect or
present a user with a message when a Http session timeout has
occurred. You know, "your session has expired, so you must re-login"
message or something similar.
I'm in the beginning stages of the code. So far, the app stores certain
information about the user in a http session Java Bean, so I'm thinking
of checking for the existence of this bean in a Controller servlet to
determine if the Http session has timed out:
if (javabean == null) {
String message = "Your session has timed out, please login again";
}
else ...
Any opinions on this? (including other, better ways to achieve this
functionality)
-Todd
--
//////
//
// Mike Clark
//
// Clarkware Consulting
// Enterprise Java Architecture, Design, Development
//
// http://www.clarkware.com
// [EMAIL PROTECTED]
// +1.720.851.2014
//
RE: about versions
Or, since you already have an existing version, just use the very cool... java -jar autoupdate.jar Mike --- JavierG [EMAIL PROTECTED] wrote: Version 1.0.3 is the last stable version available, 1.2.* are experimental and yes, you can find them in the Orion, only that when downloading do not click in the "binaries" link, go to "Download" and there you will find what you're looking for. Hope this help... J -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mikael Andréasson Sent: Monday, August 21, 2000 10:39 AM To: Orion-Interest Subject: about versions Hi! I wonder about the new versions of Orion. I noticed that a lot of the people here on the list talk about version 1.2.* and so on...and I only have version 1.0.3b, because thats the only one i could find on the site orionserver.com. Are the versions above 1.0.* just for commercial use or whats the story? Regards Mikael Andréasson __ Do You Yahoo!? Yahoo! Mail Free email you can access from anywhere! http://mail.yahoo.com/
Re: url rewrite parameter
According to the orion-web.dtd, you can add this element to the global-web-application.xml (or equivalent)... session-tracking autoencode-absolute-urls="true" autoencode-urls="true" / Mike Terence Kwan wrote: anybody know how to turn on the URL rewrite option in the orion server? Thanks TK
Re: Orion and CachedRowSet
The constructor for CachedRowSet requires that jndi.jar is in your CLASSPATH. This may be the NoClassDefFoundException you're experiencing. Mike --- John Sinnott [EMAIL PROTECTED] wrote: I'm having an interesting problem attempting to get Sun's CachedRowSet working with Orion. I have downloaded rowset.jar, placed it in my classpath, can compile my classes which use the CachedRowSet, however when my program tries to instantiate a CachedRowSet call during runtime, I get a NoClassDefFoundException. I don't understand why under Orion, this class can not be instantiated. I have verified multiple times that the classpath and import statements are correct. Any ideas? Thanks, John __ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/
Re: DTD usage
If you're truly seeing an XSL error, then somewhere along the line an XSL transformation is being attempted on your XML before displaying it in the browser. I'm assuming you're using the XSL servlet in Orion?! Mike Olaf Mersmann wrote: I have a DTD named page.dtd and a file page1.xml If I add a !DOCTYPE page SYSTEM "page.dtd to page1.xml and put page.dtd in the same directory as page1.xml and make it world readable and then try to access page1.xml I get an XSL paresing error. What am I doing wrong? Thanks in advance. Olaf Mersmann
Re: Begging for Help: EJB Deployment in Orion Server 1.0
The Orion Primer provides an introduction to deploying EJBs with Orion... http://www.znerd.demon.nl/orion-primer/ Mike --- Ray Harrison [EMAIL PROTECTED] wrote: Hello: (I am quite new - forgiveness and patience please!) I am working with Monson-Haefel's EJB book and am trying to figure out a way to deploy the example EJBs to the Orion Server (1.0). I have seen a number of postings on the subject (deployment of EJBs) but have seen few, if any, answers. I would like to ask for, nay beg for, some answers. I am quite new at EJBs but making rapid progress and would like to continue learning w/o being bogged down by the well-known poor docs of Orion. I have successfully deployed EJBs in Sybase's Jaguar CTS (I guess it's EA Server, now). Does ANYONE have suggestions on deployment of EJBs. Has anyone successfully deployed the Monson-Haefel EJBs in Orion? I have the JAR file and the ejb-jar.xml file. I take the these and do what, exactly? Any help is greatly appreciated __ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ __ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/
Re: Faster deployment?
What specifically is creating a drag on your deployment time? I use a Makefile which creates the .ear file, and once the .ear file is "touched", the server re-deploys the application at blazing speed. Mike --- Anders Bengtsson [EMAIL PROTECTED] wrote: Hello, Does anyone have any ideas for how to make .ear deployment go faster? We're doing a lot of testing during development. Our test script re-deploys the entire application before running the test suite, so the deployment speed is really important for us. Using Jikes as the EJB and JSP compiler made a great difference, but there must be other ways to shorten deployment time? /Anders A n d e r s B e n g t s s o n [EMAIL PROTECTED] http://www.natakademin.se/ __ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/
Re: How do you like Orion?
It's unfortunate that folks are willing to fork over tens of thousands of dollars for similar products while casting a skeptical eye on products that are more realistically priced. It's a high-powered application server, not a Mercedes! We've somehow been brainwashed into thinking that application servers should be expensive, both for development and production, and along the way the notion of quality has gone by the wayside. At any rate, Orion is an outstanding product, at a reasonable price, and I'd highly recommend that you kick its tires. Mike Charles Fausz wrote: Hi there busy people, I'll be quick. We're in the research stage, we've chosen JBuilder for our Java tool, now we've got to find an application server. Our development platform will be NT. My boss wants to use MS IIS and MTS, but I'd like to stay away from MS if possible. So... how do you like working with Orion App server? Would you recommend it to others? Anything we should know about it? I'm concerned about how cheap it is, is there something hidden here? Will I get what I pay for? Thanks for any input. Have a nice day! Phil -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
Re: Latest Version
You can download version 1.1.24 and then use... java -jar $ORION_HOME/autoupdate.jar This will update the installation to 1.1.30+. Mike Adam Cassar wrote: I have noticed on previous postings talk about Orion v1.1.30. Where does one get this version? The WWW site only has 1.1.24 -- Adam Cassar Senior Web Developer ___ NetRegistry http://www.netregistry.au.com Tel: +61 2 9699 6099 | Fax: +61 2 9699 6088 PO Box 270 Broadway NSW 2007 Australia -- // // // Mike Clark // // Clarkware Consulting // Enterprise Java Architecture, Design, Development // // http://www.clarkware.com // [EMAIL PROTECTED] // +1.720.851.2014 //
